<?php
	class Shape3D extends Shape{
		
		protected $length;
		
		public function __construct($width, $length, $height) {
			parent::__construct($width,$height);
			$this->length = $length;
			$this->shapeType = "Unknown 3D Shape";
		}
		
		public function getVolume() {
			return $this->width * $this->height * $this->length;
		}
		
		public function  setLength($newLen) {
				
		}
		
		public function resize($newA, $newB, $newC=0) {
			$this->length = $newC;
			parent::resize($newA, $newB);
		}
		
	}
?>